Nut-lock



N0 Modl.) L

NUT LOOK.

No. 368,357. Patented Aug. 16, 1887.

. WITNESSES Z INVENTOR I ATTORNEYS.

UNITED STATES ATENT QFFICE.

LAVEGA SELF, OF PIEDMONT, MISSOURI.

NUT-LOCK.

SPECIFICATION forming part of Iietters Patent No. 368,357, dated August16, 1887.

Application filed June 1, 1887. Serial No. 239,951.

(No model.)

To aZZ whom it may concern:

Be it known that I, LAVEG-A SELF, of Piedmont, in the county of \Vayneand State of Missouri, have invented a new and Improved Nut Lock, ofwhich the following is a specification, reference being had to theannexed drawings, forming a part thereof, in which Figure l is a sideelevation of my improved nut-lock. Fig. 2 is a transverse section takenon line a; a; in Fig. 1. Fig. 3 is a side elevation of one of thesprings employed for fastening the nut. Fig. 4 is a plan view of thesame. Fig. 5 is a transverse section taken on line y y in Fig. 3. Fig. 6is a front elevation of the nut-lock spring-holder. Fig. 7 is aplan viewof the nut-lock spring-holder, and Fig. 8 is an end elevation of thesame.

Similar letters of reference indicate corresponding parts in all thefigures.

The object of my invention is to provide a simple and effective devicefor preventing the accidental loosening of nuts and bolts employed insecuring fish-plates to railway-rails, at the same time permitting of acertain amount of motion in the bolts.

My invention consists in the combination, with a fish-plate having aflange extending over the foot of the rail and provided with a cavityfor receiving a spring-holder, of a spring-holder fitted to the cavity,and a spring supported by the holder and adapted to engage the sides ofthe nuts, all as hereinafter more fully described.

To the railway-rail A are fitted the fishplates B, having flanges O,which extend outward over the foot of the rail. In the flanges O areformed recesses a between each part of the bolt-holder, as shown in Fig.1, and to the said recesses are fitted the spring-holders D, which areprovided with studs Z) for engaging the springs. The spring-holders Dare provided with shoulders c for receiving the tool by which they arelifted out of the recesses a.

Upon the studs Z) of the spring-holders D are received the straightsprings E, the said springs being provided with a central aperture, 6,adapted to fit over the studs 5. The

springs E are each provided with an ear, f, which serves the doublepurpose of re-enforcing the spring opposite the aperture 6 and ofproviding a hold upon the spring-support D, the said ear extendingdownward behind the rear surface of the spring-support. The ends of thesprings E are thickened upon their under surface and beveled to adaptthem to the surface of the flange O of the fish-plates, and they arealso provided with guide-pins g, which extend into holes h,formed in theflange of the fish-plate.

The fish-plate is held in its place upon the rail ends by bolts 1' inthe usual way, and the nuts j are turned so as to bring their lowersurfaces in a horizontal plane. The studs 1) of the spring-holders D areplaced in the apertures c of the springs, and the springs are insertedunderneath the nuts, the spring-sup port D being lifted by means of asuitable wrench, so as to allow .it to slip into the recess a in theflange of the fish-plate. The wrench by which the nut-lock is placed inposition is also of suitable dimensions to apply to the nuts j, so thatthe track man is obliged to carry but a singlewrench to tighten orloosen the nuts or to remove or apply the nut-lock.

My improved nut-lock allows of the expansion and contraction of thetrack-rails, and also of the yielding of the track during the passage ofa train.

Having thus fully described my invenion,

I claim as new and desire to secure by Letters Patent 1. Thecombination, with the fish-plate B, provided with a recess, a, and holesh, of the spring-holder D, having shoulders c and a stud, b, and thespring E, provided with an aperture, 0, and ears f, and having thickenedends furnished with guide-pins substantially as described.

2. The combination, with the rails A, of the fislrplates B, havingrecesses a and holes h, the spring holders D, adapted to the recessesand provided with the studs 1), and the straight springs E, having thecentral aperture, e, and provided with theears fand the pins 9,substantially as described.

LAVEGA SELF.

\Vitnesses:

WILLIAM N. NALLE, W. L. RALSTON, WILLIAM P. ToNnY.

